Your Brain is a Dirty Rotten Liar

Some of the thoughts running your life aren’t facts. They just feel like facts, because you’re standing too close to see them as thoughts at all. Here’s how to catch your brain in the lie, and what to do about it.

Years ago, when I was running a company for Mark Cuban and Todd Wagner, I hired a woman named Emily.

She’d come off the floor of a retail clothing store and applied for an entry-level customer service job. I interviewed her and saw something – I’m still not totally sure how to describe it – and instead of the role she applied for I put her in a Client Success Manager position. Bigger job. More responsibility. A real seat at the table.

And she was completely sure she couldn’t do it.

I want to be precise about this, because it’s important: Emily wasn’t nervous. Nervous would have been fine, nervous is normal. What she had was different. She “knew” she didn’t belong in that room the way you know your own phone number, the way you know the floor is down and the ceiling is up. It wasn’t a worry she was carrying around and examining. It was just a fact about the world to her, sitting there as solid as the desk she worked at. “I don’t know how to do this job” wasn’t something Emily thought. It was something Emily was.

From where I sat, it was obvious the thing wasn’t true. She was already good at the work. But you couldn’t just tell her that, and I learned pretty quickly that arguing with her about it went nowhere, because she wasn’t holding the belief at arm’s length where we could look at it together. She was standing inside it. There was no daylight between Emily and the thought, and you can’t examine something you’re wearing like your own skin.

I’ll tell you how it turned out, because it turned out well. But first I want to talk about that skin, the no-daylight thing, because it has a name.

The lie you don’t realize you believe

There’s a word for the state Emily was in: cognitive fusion. It just means you and a thought have gotten so tangled together that there’s no space between you. You’re not noticing the thought. You’re looking through it, like a pair of glasses you forgot you have on, and so whatever it says just looks like the world.

When you’re fused with “I’m going to blow this,” you don’t experience it as a sentence in your head. You experience it as the weather. It’s just the conditions you’re operating in. Same with “they think I’m a fraud,” or “it’s too late for me,” or “people like me don’t get to have that.” Fused, those don’t feel like opinions your brain is generating. They feel like reporting. Like your brain is simply telling you how things are.

Your brain does this constantly, and it’s not a malfunction. Generating thoughts, including a lot of grim, confident, wildly inaccurate ones, is just what the thing does all day. That’s its native language. The brain is kind of a dirty rotten liar by default, narrating away, and most of the time the lies are harmless. The trouble starts when you believe every word it says.

So the problem usually isn’t the thought itself. The problem is the distance, or the total lack of it.

Tell me how it feels when you bang your head against that wall

In the 1980s there was a clinical psychologist named Steven Hayes who was doing what most good therapists did at the time, which was a version of cognitive behavioral therapy. The basic idea of CBT is sound and it helps a lot of people: your thoughts get distorted, so you learn to catch the distortions, challenge them, argue with them, and replace the bad thought with a more accurate one. Find the lie, dispute the lie, swap in the truth.

And it worked. Sometimes. But Hayes kept running into the same wall, over and over, and it bothered him.

His patients would get pretty good at the basic CBT technique: They’d learn to spot exactly why a thought was irrational. They could sit in his office and lay out, in clean detail, all the reasons “I’m worthless” was distorted and unsupported and unfair. They understood it. They could teach it back to him. And then they’d walk out the door and go right on living as though the thought were gospel anyway.

That gap drove him a little crazy, and sitting in it is where he found the thing that made him famous. Maybe, Hayes started to think, the move was never to win the argument with the thought. Maybe you could understand perfectly well that a thought was false and still be run by it, because the real issue wasn’t whether you believed the content. The real issue was your relationship to it. You were still fused. You’d just become a fused person who could also recite why the thought was wrong, which, it turns out, changes almost nothing.

Through the 1990s, Hayes and his colleagues Kirk Strosahl and Kelly Wilson built this insight into a whole approach called Acceptance and Commitment Therapy, ACT for short (said as a word, like “acting”, not an acronym). Their book came out in 1999, and the core idea was a little heretical for the field at the time (Association for Contextual Behavioral Science). Instead of trying to change what your thoughts say, you change how you hold them.

The skill at the center of it is the opposite of fusion, and they called it defusion. Not arguing the thought down. Not slapping a sunny affirmation over the top of it. Just stepping back far enough that you can see the thought sitting there as a thought, a thing your mind is doing, rather than looking through it at a world it has secretly colored.

Milk, milk, milk

The strangest part of all this, and actually the thing that made it click for me, came out of a technique so simple it sounds like a joke.

Almost a hundred years ago, a psychologist named Edward Titchener noticed something most of us have stumbled into by accident. Take any word and say it out loud, fast, over and over, and after a little while it falls apart. It stops being a word and turns into a noise. Just a weird sound your mouth is making. The meaning drains right out of it. There’s a clinical name for this – semantic satiation – but you already know the experience, because you did it as a kid with a word that struck you as funny until it dissolved into gibberish.

Hayes had a thought. What if you could aim that at the thoughts that are hurting or blocking you?

In 2004, he and a few colleagues ran a small, clever study to find out (Masuda, Hayes, Sackett & Twohig, 2004; PubMed / National Library of Medicine). They had people identify their single most painful belief about themselves, the one that landed hardest, and boil it down to one word. For one person it might be stupid. For another, unlovable. The thought that, fused, felt like the truest thing about them.

Then, before they touched any of that, they had everyone warm up on a different word. Milk. Just milk. Say it once and notice what shows up: the cold, the white, the way it coats a glass. Then say it fast, out loud, for about thirty seconds. Milk milk milk milk milk. And right on cue, “milk” stopped being milk. It became a soft, dumb little noise. The cold white liquid evaporated and left a vapid sound behind.

Then they aimed the same thing at the painful word.

They compared it against the stuff you’d normally try: distracting yourself, or working hard to control and redirect the thought. The rapid-repetition trick beat both. After thirty seconds of saying the word until it turned to mush, people rated the thought as both less believable and less upsetting than the other more traditional approaches.

Nothing about anyone’s life changed in those thirty seconds, obviously. No new evidence came in. The only thing that changed was the distance. The word got a little bit of space around it and immediately started to look like what it always was: a sound a person learned to make, not a verdict carved into stone. The thought felt true because it was close and familiar and had been repeated a thousand times, not because it was accurate. And you can demonstrate the difference to yourself in about half a minute.

How to get some space

You don’t need a study or a soundproof booth for this. The everyday versions of the ACT experiment are almost stupidly small, which is the whole point, because it means you’ll be more likely to use them when your brain is mid-lie.

The first one is a five-word fix. When a thought has you, stick “I’m having the thought that” in front of it. So “I’m a fraud” becomes “I’m having the thought that I’m a fraud.” Read those two back to back and you can feel the floor shift. The first one is a sentence you’re trapped inside. The second one has a narrator in it, a you who is standing slightly outside the thought, noticing it. That little bit of grammar does a lotta bit of work. You’ve gone from being the thought to being the person watching the thought go by.

The second one is a cousin of the first. “The story I’m telling myself is…” Six words, and they sneak in something useful, because the second you call it a story, you’ve quietly admitted it’s a concoction. “The story I’m telling myself is that he’s furious at me.” “The story I’m telling myself is that I already missed my shot.” Naming it as a story doesn’t make it false. Sometimes the story’s even right. But it stops being the air you breathe and becomes a thing on the table that you’re allowed to pick up and turn over.

Which brings me back to Emily.

We never argued her out of “I’m underqualified.” I tried, early, and it bounced right off, because you can’t talk someone out of something they’re standing inside. What we did instead was slowly pry a little space around it. I’d catch the belief when it showed up, usually disguised as a reason she couldn’t do something, and we’d set it on the table and look at it next to what was actually happening. The client who specifically asked for her. The problem she’d untangled that week that nobody else caught. The thing she’d done well an hour ago. Not affirmations, not “you’ve got this,” just evidence, the boring real kind, held up against the story until the gap between them got impossible to ignore.

It didn’t happen in an afternoon. But over time the sentence lost its grip. It went from a fact she was to a thought she noticed, and once it was just a thought she could look at, she could see how little it had going for it. 

By the way, Emily is now an executive at that same company. When I left, she took my job.

Sometimes the thought isn’t the problem. The label is.

Now, I don’t want to leave you thinking every uncomfortable thing in your head is a lie to be defused. That’s its own kind of trap, and it isn’t true. Sometimes the thing that’s happening isn’t a false thought at all. Sometimes it’s a real feeling, your body doing exactly what bodies do, and the feeling itself is fine. What gets you is the name you slap on it.

In 2015, a team led by James Gross brought 142 people into a lab and sat them in front of a series of short film clips that were built, frame by frame, to make them feel something rough: sadness, fear, disgust (Gross et al., 2015, published in Emotion; National Institutes of Health). To find out how they felt while watching the film clips, they wired them up so they could watch the body react in real time. They could measure the skin conductance, the physical signature of an emotion rising and falling.

Everyone got the same upsetting clips. The difference was the instruction. One group was told to reappraise what they were watching, to actively reframe it, to tell themselves something like “this is a film, these are actors, this isn’t real.” A second group was told to accept the feeling, to let it be there and observe it without fighting it. And a third group just watched, no strategy, the way you’d watch anything.

The reappraisers came out ahead, and not just in how they said they felt. Their bodies settled faster. The physiological spikes came down sooner and smoother. They recovered, in real time, quicker than the other two groups. Acceptance helped some – it was definitely better than nothing. And just sitting in it without any reframe? That barely reset anything at all.

Here’s why that matters for a regular Tuesday, off camera, nowhere near a lab. Think about what anxiety actually feels like in your body. Heart going fast. Chest tight. A jittery, buzzy, keyed-up charge running through you. Now think about excitement. Heart going fast. Chest tight. A jittery, buzzy, keyed-up charge. They’re nearly the same event. The raw signal your body sends is almost identical, and the thing that decides whether it wrecks you or fuels you is largely the label your mind reaches for to explain it.

I’ve used this one a lot, especially around speaking. For years, the minutes before I got up in front of a room felt like dread. Pacing, dry mouth, the whole thing, and I’d narrate it as “I’m panicking, something’s wrong, I shouldn’t be doing this.” At some point I started, very deliberately, calling it something else. “I’m fired up.” “This is the good kind of nervous, this is my body getting ready.” Nothing about the physical sensation changed. I wasn’t lying to myself or pretending to be calm. I was just re-reading a signal that was honestly kind of neutral, and reading it as fuel instead of as a warning. It lands completely differently, and over time it changed how I show up.

So you’ve got two different tools for two different problems. Defusion is for when a thought is lying to you, when the move is to step back and get some distance from something false. Reappraisal is for when the feeling is telling the truth but getting mislabeled, when the move is to re-read the same real signal in a more accurate, or at least more useful, way. One creates space from a thought. The other relabels a feeling. Both of them hand you back a little control your brain had quietly taken.

The catch 

Quick programming note:

Catching the lie is not the finish line.

You can defuse beautifully. You can watch a brutal thought turn into “I’m having the thought that,” feel the space open up, get genuine relief. You can relabel the nerves and feel the charge flip from dread to fuel. And then you can take all that lovely clarity and go right back to sitting on the couch, doing nothing, because seeing the thought for what it is doesn’t, by itself, move you an inch.

I’ve written about this before in other ways, and I’ll keep saying it because it’s the thing that actually matters. Insight feels like progress. It is so satisfying to finally understand the pattern, to name the lie, to see the machinery. But understanding is not the same as moving, and your life doesn’t change on the strength of a great realization. It changes on the strength of what you do next.

So defusion and reappraisal aren’t the win. They’re what clears enough room for the win to happen. The whole point of getting distance from a lying thought is that the distance is a doorway, and once it’s open, you still have to walk through it. Every time you peel a thought off and get some space, pair it with one small real action. Don’t just notice “I’m having the thought that I’ll fail at this” and feel relieved. Notice it, and then send that damn email. Make that damn call. Do the small next thing the thought was talking you out of. That’s what rewrites the thought over time: Not the noticing. The doing.

Roommates, not landlords

Your brain is going to keep lying to you. I want to be clear that this never fully stops, not for me, not for anyone. The goal was never to get a quiet, honest brain that only tells you true things. That brain isn’t on the menu.

The goal is just to stop taking its word for everything.

Your thoughts get to live in your head. They’re roommates; you’re stuck with them. But they don’t get to be the landlord. They don’t get to decide what you do, where you go, what you’re allowed to try. A thought can sit there insisting you’re a fraud, or that it’s too late, or that you don’t belong in the room, and you can hear it, and notice it, and not believe a syllable of it, and go do the thing anyway.

You don’t have to win the argument. You don’t have to feel ready. You just have to remember that the voice narrating your limits is a thing your brain is saying, not a fact being handed down from on high, and then take the next small step in spite of it.

If you want help figuring out which lies your particular brain likes to tell, that’s a lot of what I work on around here, and it’s the idea behind finding your Stuck Type. But you can start before any of that. Next time your brain hands you something heavy and certain, try the five words. Put “I’m having the thought that” in front of it, and see what it looks like from the outside.

I bet it looks a little smaller.